Display Device Having Watch-Time Reminding Function To Prevent Nearsightedness

Abstract

A display device having a watch-time reminding function includes an input unit, a display unit, a sound output unit and a control unit. A user can use the input unit to set a health watch time or turn on or off the watch-time reminding function. After the watch-time reminding function is turned on, the control unit counts a current watch time and compares the current watch time with the health watch time. When the current watch time reaches the health watch time, the control unit judges that the user spends too much time watching the display device. Accordingly, the control unit controls the display unit to display a reminding image and controls the sound output unit to output a reminding sound so as to remind the user to take a rest or do eye exercise to prevent nearsightedness.

1 . A display device having a watch-time reminding function to prevent nearsightedness, comprising:
 an input unit, for providing a user to input an instruction to set a health watch time or turn on or off the watch-time reminding function;   a display unit, for displaying a reminding image when receiving a reminding signal;   a sound output unit, for outputting a reminding sound when receiving the reminding signal; and   a control unit, coupled to the input unit, the display unit and the sound output unit, for starting counting a current watch time when receiving the instruction of turning on the watch-time reminding function, outputting the reminding signal when the current watch time reaches the health watch time, and not outputting the reminding signal when the current watch time does not reach the health watch time.   
     
     
         2 . The display device according to  claim 1 , wherein the input unit comprises a keypad module comprising a plurality of keys for providing the user to press to generate the instruction. 
     
     
         3 . The display device according to  claim 1 , wherein the input unit comprises a remote control receiver module for receiving a remote control signal to generate the instruction, wherein the remote control signal is generated by the user pressing keys of a remote controller. 
     
     
         4 . The display device according to  claim 1 , wherein the control unit comprises:
 a timer module, for counting the current watch time;   a storage module, for storing the health watch time; and   a control module, coupled to the timer module and the storage module, for controlling the timer module to start counting the current watch time and reading the health watch time stored in the storage module when receiving the instruction of turning on the watch-time reminding function, outputting the reminding signal to control the display unit to display the reminding image and control the sound output unit to output the reminding sound when the current watch time reaches the health watch time, and not outputting the reminding signal when the current watch time does not reach the health watch time.   
     
     
         5 . The display device according to  claim 4 , wherein the storage module comprises a non-volatile memory. 
     
     
         6 . The display device according to  claim 4 , wherein the control module comprises a microcontroller. 
     
     
         7 . The display device according to  claim 1 , wherein the display device comprises a monitor. 
     
     
         8 . The display device according to  claim 1 , wherein the display device comprises a television. 
     
     
         9 . The display device according to  claim 1 , wherein the display device comprises an all-in-one computer. 
     
     
         10 . The display device according to  claim 1 , wherein the sound output unit comprises a loudspeaker or beeper.